Answer:
D. independent; dependent
Explanation:
The dependent variable is the variable that is being measured during the course of an experiment. It represents the variable that changes with the manipulation of other variables.
The independent variables are variables which are varied or manipulated during the course of an experiment. The effects of their variations are measured on the dependent variable.
<em>In this case, the interval between the bell and presentation of food was varied and the effects of the variation was measured by determining the amount of salivation.</em>
Hence, the interval is the independent variable and the amount of salivation is the dependent variable.
The correct option is D.
Explanation:
(a) Formula to calculate the capacitance is as follows.
Now, putting the given values into the above formula as follows.
= 0.291
or, 
= ln (0.291)
= -1.23
C = 0.729 F
Hence, the value of capacitance is 0.729 F.
(b) Formula to calculate the constant of circuit is as follows.
T = 
= 
= 2.259 sec
Therefore, the time constant of the circuit is 2.259 sec.
Answer:
A. Equal to and Opposite
Explanation:
when there is no External force acting on the system of bodies then Net momentum of the system is Conserved .
Given that there are 2 bodies
Let P₁ as first object's momentum
P₂ as second object's momentum.
Total Momentum =P₁ + P₂
As there is no external force acying on the system
Change in the Total momentum is zero
so,
0 = Δ P₁ + ΔP₂
ΔP₂ = -ΔP₁
negative sign indicates opposite direction.
Both are of equal magnitude.
